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沪上小王子 · 2024年01月26日

如果把问题反过来问,return归因相对于risk归因有哪些区别,应该如何回答呢?

NO.PZ2020020202000004

问题如下:

Risk attribution differs from return attribution in that it:

选项:

A.

is not conducted relative to a benchmark.

B.

quantifies the risk consequences of the investment decisions.

C.

quantifies the investment decisions of the investment manager.

解释:

B is correct.

Risk attribution, unlike return attribution, attempts to quantify the risk consequences of the investment decisions.

A is not correct because risk attribution may be conducted on either an absolute or a relative basis.

C is not correct because risk attribution does not capture the return impact of a manager’s investment decisions.

原题的答案说risk归因定量了投资决策对风险的结果,那return归因不也有对于投资决策的拆解吗?

1 个答案

笛子_品职助教 · 2024年01月27日

嗨,爱思考的PZer你好:


Hello,亲爱的同学~

风险归因,是指:portfolio的variance,是由哪些factor带来的,每个factor对portfolio variance的贡献是多少。

收益归因,是指:portfolio return,是由哪些factor带来的,每个factor对portfolio return的贡献是多少。


两者确实有相似之处,都是用factor来解释portfolio的表现。

区别是:风险归因,用factor的风险解释portfolio的风险。

收益归因,用factor的收益解释portfolio的收益。


同学的理解是正确的,return归因也有助于对投资决策的拆解。


如果用return,这题可以改成:

return attribution differs from risk attribution in that it:

B、quantifies the return consequences of the investment decisions.

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看了下其他同学的问题还是不明白。 B Risk attribution, unlike return attribution, attempts to quantify the risk consequences of the investment cisions. 这句话怎么 C 为什么错误。

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